The Service found that the five species are endangered throughout their ranges due to multiple threats including habitat destruction, fragmentation, and degradation; predation; inadequacy of regulatory mechanisms; and the small size and isolation of the remaining populations. Overexploitation by humans also poses a threat to three of the species (gorgeted wood-quail, Cauca guan, and blue-billed curassow).

The final rule will publish in the Federal Register on October 29, 2013, and will be effective in 30 days on November 29, 2013. The Federal Register publication of the rule is available online at http://www.fws.gov/policy/frsystem/default.cfm by clicking on the 2013 Final Rules.

Addition of a foreign species to the Federal List of Endangered and Threatened Wildlife places restrictions on the importation of either the animal or its parts. Listing can also generate conservation benefits, such as increasing awareness of the species, prompting research efforts to address their conservation needs, or funding conservation in range countries.

The ESA provides a critical safety net for fish, wildlife and plants and to date has prevented the extinction of hundreds of imperiled species, as well as promoting the recovery of many others. The Service is actively engaged with conservation partners and the public in the search for improved and innovative ways to conserve and recover imperiled species.

The mission of the U.S. Fish and Wildlife Service is working with others to conserve, protect, and enhance fish, wildlife, plants, and their habitats for the continuing benefit of the American people. We are both a leader and trusted partner in fish and wildlife conservation, known for our scientific excellence, stewardship of lands and natural resources, dedicated professionals, and commitment to public service. For more information on our work and the people who make it happen, visit www.fws.gov.